分形通常并不自相似

3Blue1Brown explains fractal dimension and shows why many fractals are not strictly self-similar. Self-similarity turns out to be a special case of the broader idea of fractional dimension.

Why HN likes it: It is the standard pointer for a clear, visual explanation of what fractals are, and for correcting the idea that fractal means self-similar.

“Here is are two very clear explanations of fractal dimension by the man himself, Grant from 3b1b.”